What is the projection below a condyle?
What is the projection below a condyle?
The rounded projection that articulates with the temporal bone is the condyle, or condylar process. The narrowing below the condyle is the neck. The sharp, slender projection in front of the condyle is the coronoid process, a major muscle attachment, as we’ll see.
Is Fossa a projection depression or opening?
A fossa is a depression in the bone surface which is often broad and shallow. It may support brain structures, or receive another articulating bone. The temporal fossa is one example. It is one of the largest landmarks on the skull, serving as an origin site for the temporal muscle.
What happens mandibular depression?
This bilateral contraction, when assisted by the suprahyoid and infrahyoid muscles, results in depression of the mandible (opening of the jaw). Among all the four muscles of mastication (medial pterygoid, lateral pterygoid, masseter, and temporalis), the lateral pterygoid is the only muscle that depresses the mandible.
Is opening your mouth depression?
The mandible is depressed when the mouth is opened and elevated when the mouth is closed.
What muscles open the jaw?
Muscles that depress the mandible and thus open the jaw include the anterior digastric, mylohyoid, and inferior head of the lateral pterygoid. Jaw-closer muscles consist of the masseter, temporalis, medial pterygoid, and superior head of the lateral pterygoid.
Which is the correct definition of the term condyle?
Terms in this set (25) condyle large, rounded projection that usually articulates with another bone facet small, flat or nearly flat surface head prominent, rounded projection of the proximal end of a bone, usually articulating. processes that form condyle, facet, head
Where is the sulcus of the femoral condyle?
A normal sulcus is located within 10 mm of Blumensaat’s line on lateral projection 3. On a lateral projection, a line is drawn from the normal articular surface of the lateral femoral condyle. The depth of the abnormal depression/notch can then be measured.
What kind of depression is on a bone?
Depression in the margin of a bone sinus cavity or hollow space in a bone Sulcus furrow or groovelike depression on a bone cavities(depre facet, foramen, fossa, fovea, meatus, notch, sinus, sulcus THIS SET IS OFTEN IN FOLDERS WITH…